Poor fuel quality. Incomplete combustion and lack of sealing between piston and cylinder wall or badly losing valves. Possibly incorrect engine timing / set up.
燃油品质差，不完全燃烧和活塞与气缸壁之间的密封性差。 。
Poor people go hungry, in part, because Americans pay their farmers to divert crops from food to fuel.
穷人挨饿部分是因为美国公司从农民手中收购粮食，然后把农作物转化成燃料。
Finally, there is a very urgent need to recognize that poor countries that were already under strain-notably from suffering through the food and fuel crisis-should receive attention quickly.
最后，一个十分紧迫的任务是，承认已经受到压力的贫困国家(特别是受到食品和燃料危机的压力)应该尽快得到关注。
With the cost of food, fuel and fertiliser at historic heights, poor Swazi farmers could be back where they were last year before the planting season: unable to afford the basics to sow their land.
随着粮食、燃料和肥料价格达到历史高位，贫穷的斯威士兰农民将会回到去年播种季节前的处境：买不起生产所需的基本物资。
In poor countries, forests are cleared to provide fuel and farmland, but as people gain wealth and better agricultural technology, the farm fields start reverting to forestland.
在较穷的国家里，森林被清除从而用来提供燃料和能唱，但是随着人们获得财富以及较好的农业技术，农场土地开始转向森林使用。
That supposedly helps the poor. But Fatih Birol, the IEA's chief economist, says that the subsidies mainly benefit middle-income and higher-earning urban types; the rural poor use little fossil fuel.
发放补贴本是为了帮助穷人，但国际能源机构首席经济学家法提赫•比罗尔指出，得益于这些补贴的主要是城市里的中等及高等收入群体；贫穷的农村人很少消费化石燃料。
Poor countries were already coping with higher prices for food and fuel, putting 130m-155m people below the poverty line, the World Bank reckons.
世界银行估计，贫国已经在付出更高价格获取粮食与燃料，这使得1.3- 1.5亿人在贫困线下。
The World Bank estimates more than 100 million people became poor when food and fuel prices skyrocketed last year.
世界银行估计，大约有超过1亿人在去年的食品和燃料价格急剧上升时陷入了贫困。
In other words, depression could fuel poor body image, which could cause a teenager to believe that his acne is worse than it is.
换句话说，抑郁会推动糟糕的身体形像产生，这会让一个青少年认为他的痤疮比实际上要严重的多。
World Bank analysis shows that the impact of the crisis is being felt by poor people across the world, many of whom were already hit hard by the food and fuel crises.
世界银行分析显示，世界各国的贫困人民正在感觉到危机的影响，许多人此前已受到食品和燃料危机的沉重打击。
Some households spend as much as 30 percent of their income on lamps and fuel — this for two or three hours of poor quality light at night.
许多家庭在灯具和燃料上的支出占到其收入的30%之多，而这些只为了再每晚能够有两到三个小时的亮光。
Diesel engines are almost unknown in emerging markets other than India because poor-quality diesel fuel is associated with trucks.
柴油引擎在新兴市场除了印度外几乎没人知道，因为质量低劣的柴油与卡车联系在一起。
Through the catalysis of modifier, it successfully solves the problems of low-carbon fuel with poor ignition performance at low temperature and gas lock at high temperature.
通过改性剂的催化作用，成功解决了低碳燃料低温引燃性差、高温时易发生气阻的问题；
Most of these people are poor, live off the land in some manner, use wood for fuel, and, are unlettered.
大多数人都贫穷，以各种各样的方式依靠土地为生，以木材为燃料，且没有受过教育。
Meanwhile, it is the world's poor who suffer as ever more of the world's productive land is devoted to growing fuel, rather than food.
同时，当世界上更多的耕地用于种植燃料而不是种植粮食，受苦的是世界穷人。
We reaffirm our commitment to rationalise and phase out inefficient fossil fuel subsidies that encourage wasteful consumption, recognising the need to support the poor.
我们重申逐步取消鼓励浪费的化石燃料补贴，同时对最贫困人群提供支持。
Excessively large sizes of particles give rise to reduced reactivity of fuel, causing start-up problem and poor gas quality.
粒子尺寸过大引起的燃料减少，反应性，导致启动问题的气体质量差。
At low temperatures, mixture formation is poor due to the large fuel droplets concerned, and due to the inefficient mixing of the fuel with the air drawn in by the engine.
低温时，燃油黏度和密度增大，且发动机所吸入的空气无法与燃油充分混合，从而影响油气混和气的形成。
Concerning on the problem of poor reliability and low measurement precision of traditional volumetric fuel consumption meter, a ball float fuel consumption meter is designed.
针对传统油耗仪可靠性差、测量精度低的问题，设计了一种浮球式发动机油耗仪。
Poor governance of the environment and natural resources can contribute to the outbreak of conflict. It can fuel and finance existing conflicts and it can increase the risk of relapse.
环境资源和自然资源治理不当会引发冲突，也会给现有的冲突火上浇油并使之获得资金支持，还会增加冲突死灰复燃的风险。
At present the common used alcohol sensor is fuel cell type and semiconductor type, with weakness being either high price or poor selectivity and demanding the heat device.
目前常用的燃料电池型和半导体型乙醇传感器具有价格高或选择性差、需要加热装置的缺点。
We are also considering a flexibility option to allow suppliers to have a reduced Priority Group share if they direct some more expensive measures at those households most likely to be fuel poor.
我们也在审议一个可行性方案，如果供应商为那些最缺乏燃料的家庭直接建议成本更高的措施，他们拥有的优先权群体份额将缩小。
Fuel-pump pressure and capacity can be checked with special gauges. Low pump pressure will cause fuel starvation and poor engine performance.
燃油泵的压力和流通能力可以用专门的仪器进行检查。泵油压力下降可引起供油不足，并降低发动机的性能。
The poor lubricity of low sulfur diesel fuel results in the bad wear of fuel pump.
低硫柴油的润滑性差，导致燃油泵严重磨损。
Wheel tractors, especially small wheel tractors have some well-known disadvantages such as poor traction performance, driving wheel slipping, low traction efficiency and high fuel consumption.
轮式拖拉机特别是小型轮式拖拉机在田地进行重负荷作业时，牵引附着性能差，驱动轮滑转严重，造成牵引效率低、油耗大是普遍现象。
Wheel tractors, especially small wheel tractors have some well-known disadvantages such as poor traction performance, driving wheel slipping, low traction efficiency and high fuel consumption.
轮式拖拉机特别是小型轮式拖拉机在田地进行重负荷作业时，牵引附着性能差，驱动轮滑转严重，造成牵引效率低、油耗大是普遍现象。
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